respiration
exchange of gas between an organism and its environment
essential for voice production
inspiration
the process bringing air into the lungs
aka inhalation
expiration
process of eliminating air from the lungs
aka exhalation
vertebral column- FUNCTION
provides protection for the spinal cords
types of vertebrae
7 cervical (vertebrae)
-neck
C1-C7
atlas C1
Axis C2
atlas C1 (cervical)
supports the weight of the skull
very small spinous process
axis C2 (cervical)
fits into atlas and allows for rotation and pivoting of the skull
12 thoracic (vertebrae)
-behind ribcage
T1- T12
-larger spinous and transverse processes than cervical vertebrae
-superior and inferior costal facets are the attatchment points for ribs
5 lumbar (vertebrae)
1 sacrum (vertebrae)
- S1 - S5 fuse together to form sacrum
sacral foramina
provides a passageways for sacral nerves
1 coccyx (vertebrae)
structures of a vertebrae
body (structures of a vertebrae)
- anterior large plate like portion
pedicles (structures of a vertebrae)
lateral sides of the body project posteriorly then join at midline
neural arch (structures of a vertebrae )
created where pedicles join at midline
vertebral foramen (structures of a vertebrae )
canal created when vertebrae are staked, passage of spinal cord
spinous process (structures of a vertebrae )
- attachment point for muscles and ligaments
transverse process (structures of a vertebrae )
- attachment point for muscles and ligaments
superior and inferior articular facets (structures of a vertebrae )
allow vertebrae to stack on top of one another
anterior and posterior longitudinal ligaments (structures of a vertebrae )
- bind the bodies of the vertebrae together
intervertebral discs
spinal curvature - NORMAL